Sangamo officer withholds 1,919 shares for taxes

Sangamo Therapeutics’ Principal Accounting Officer, Nikunj Jain, reported a routine tax-withholding transaction tied to restricted stock unit (RSU) vesting.

Rhea-AI Filing Summary

Sangamo Therapeutics’ Principal Accounting Officer, Nikunj Jain, reported a routine tax-withholding transaction tied to restricted stock unit (RSU) vesting. On May 25, 2026, 1,919 shares of common stock were surrendered to the company at $0.1743 per share to cover mandatory taxes.

This disposition was required under the company’s 2018 Equity Incentive Plan and was not an open-market trade. After this withholding, Jain directly holds 235,292 shares. The RSU grant that partially vested on this date delivered 2,742 shares, with 32,633 additional shares scheduled to vest in seven equal quarterly installments, subject to continued service.

Insider Trade Summary

Exercise Price or Tax Liability: 1,919 shares

Exercise Price or Tax Liability 1 txn

Insider Jain Nikunj

Role Principal Accounting Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	1,919	$0.1743	$334.48

Holdings After Transaction: Common Stock — 235,292 shares (Direct)

Footnotes (2)

1. F1. Represents shares underlying the portion of an RSU grant that vested on May 25, 2026, which were surrendered by the Reporting Person solely for mandatory tax withholding purposes using the Issuer's closing stock price on May 25, 2026 of $0.1743/share, pursuant to the terms of the 2018 EIP. This required tax withholding transaction is deemed to constitute a disposition of these shares to the Issuer for reporting purposes and does not represent a discretionary trade by the Reporting Person in the open market or otherwise.
2. F2. Includes: 2,742 shares from the May 25, 2026 vesting installment of the Reporting Person's February 25, 2025 RSU grant and the remaining 32,633 shares will vest in 7 successive equal quarterly installments thereafter. The vesting of all such RSU grants is subject to the Reporting Person's Continuous Service (as defined in the 2018 EIP) through each such date and subject to acceleration as provided in the 2018 EIP.

Key Figures

Tax-withheld shares: 1,919 shares Withholding price: $0.1743 per share Post-transaction holdings: 235,292 shares +2 more

5 metrics

Tax-withheld shares 1,919 shares Shares surrendered for mandatory tax withholding on May 25, 2026

Withholding price $0.1743 per share Issuer’s closing stock price on May 25, 2026 used for tax withholding

Post-transaction holdings 235,292 shares Common shares directly held by Nikunj Jain after tax withholding

Newly vested RSU shares 2,742 shares Portion of February 25, 2025 RSU grant vested on May 25, 2026

Unvested RSU balance 32,633 shares Remaining RSUs vesting in 7 equal quarterly installments

Key Terms

RSU, mandatory tax withholding, 2018 EIP, Continuous Service

4 terms

RSU financial

"Represents shares underlying the portion of an RSU grant that vested on May 25, 2026"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

mandatory tax withholding financial

"which were surrendered by the Reporting Person solely for mandatory tax withholding purposes"

2018 EIP financial

"pursuant to the terms of the 2018 EIP"

Continuous Service financial

"The vesting of all such RSU grants is subject to the Reporting Person's Continuous Service"

FAQ

What did Sangamo (SGMO) officer Nikunj Jain report in this Form 4?

Nikunj Jain reported a mandatory tax-withholding disposition of 1,919 Sangamo common shares. These shares were surrendered to the company to cover taxes due on RSU vesting and were not sold in the open market or through a discretionary trade.

How many Sangamo (SGMO) shares were withheld for taxes in this filing?

The filing shows 1,919 common shares were surrendered for tax withholding. The value was based on Sangamo’s $0.1743 closing stock price on May 25, 2026, as required under the company’s 2018 Equity Incentive Plan for RSU vesting events.

Is the Sangamo (SGMO) Form 4 transaction an open-market sale by Nikunj Jain?

No, the Form 4 explains this was a required tax-withholding transaction, not an open-market sale. Shares were deemed disposed of to the issuer solely to satisfy withholding obligations tied to RSU vesting, with no discretionary trading decision by Jain.

How many Sangamo (SGMO) shares does Nikunj Jain own after this transaction?

Following the tax withholding, the Form 4 states Jain directly holds 235,292 Sangamo common shares. This figure reflects his position after 1,919 shares were surrendered back to the company for mandatory tax obligations related to RSU vesting.

What are the vesting terms of Nikunj Jain’s RSU grant at Sangamo (SGMO)?

The filing notes that 2,742 shares vested on May 25, 2026 from a February 25, 2025 RSU grant. The remaining 32,633 shares are scheduled to vest in seven equal quarterly installments, contingent on Jain’s continuous service under the 2018 EIP.

What role does Nikunj Jain hold at Sangamo (SGMO) in this Form 4?

The Form 4 identifies Nikunj Jain as Sangamo’s Principal Accounting Officer. His reported transaction involves company equity compensation, specifically restricted stock units, and a mandatory tax-withholding disposition rather than a voluntary purchase or sale in the market.

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Accepted by SEC EDGAR 05/27/2026 - 07:30 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Jain Nikunj

(Last) (First) (Middle)

C/O SANGAMO THERAPEUTICS, INC.

501 CANAL BOULEVARD

(Street)

RICHMOND CALIFORNIA 94804

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SANGAMO THERAPEUTICS, INC [ SGMO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Principal Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/25/2026		F		1,919(1)	D	$0.1743	235,292(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares underlying the portion of an RSU grant that vested on May 25, 2026, which were surrendered by the Reporting Person solely for mandatory tax withholding purposes using the Issuer's closing stock price on May 25, 2026 of $0.1743/share, pursuant to the terms of the 2018 EIP. This required tax withholding transaction is deemed to constitute a disposition of these shares to the Issuer for reporting purposes and does not represent a discretionary trade by the Reporting Person in the open market or otherwise.

2. Includes: 2,742 shares from the May 25, 2026 vesting installment of the Reporting Person's February 25, 2025 RSU grant and the remaining 32,633 shares will vest in 7 successive equal quarterly installments thereafter. The vesting of all such RSU grants is subject to the Reporting Person's Continuous Service (as defined in the 2018 EIP) through each such date and subject to acceleration as provided in the 2018 EIP.

	/s/ Scott Willoughby, Attorney-in-Fact	05/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)